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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Bifida
Taxonomy
Bifida is a genus. It is not extant.
It was assigned to Atrypida by Sepkoski (2002); and to Anoplothecinae by Williams et al. (2002).
It was assigned to Atrypida by Sepkoski (2002); and to Anoplothecinae by Williams et al. (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Bifida Sepkoski |
| 2002 | Bifida Williams et al. p. 1607 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Bifida
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Pragian to the top of the Middle Givetian or 413.02000 to 383.40000 Ma
Collections (20 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Devonian - Eifelian | Czechia | B. lepica (12148) | |
| Pragian | Czechia | B. lepica (12102 12103 12104) | |
| Emsian | Germany (Hessen) | B. lepida (38349 38351) | |
| Zlichovian | Czechia (Barrandia) | B. lepica, B. dahlia (12112) | |
| Late/Upper Emsian | Spain (Palencia) | B. lepida (40351) | |
| Late/Upper Emsian | Canada (Nunavut) | B. sp. (26625) | |
| Eifelian | Poland | B. lepida (231675 231676) | |
| Eifelian | Germany | B. lepida (60141) | |
| Eifelian | USA (Nevada) | B. sp. (2775) | |
| Late/Upper Eifelian | Germany | B. lepida (60140) | |
| Late/Upper Eifelian | Morocco (Maider) | B. lepida (234962) | |
| Givetian | Germany (Nordrhein-Westfalen) | B. lepida (44122 44178) | |
| Middle Givetian | France (Bretagne) | B. lepida (84091 84095 84100) |